The document discusses the philosophical foundations of curriculum, including four major philosophies - idealism, realism, pragmatism, and existentialism. It also covers four educational philosophies - perennialism, essentialism, progressivism, and reconstructionism. The philosophies differ in their views of reality, knowledge, values, the teacher's role, and emphasis on learning and curriculum. For example, idealism sees reality as spiritual/moral, knowledge as recalling ideas, and values knowledge based subjects. Realism views reality as objective, knowledge as derived from senses/reason, and values a hierarchy of subjects.